<template>
  <div class="app-container">
    <el-row :gutter="10" class="el-row-inline">
      <!--部门数据-->
      <el-col :span="24" :xs="24">
        <el-card class="search-card">
          <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch"
                   label-width="68px"
          >
            <el-form-item label="课程专业" prop="depId">
              <el-select v-model="queryParams.subjectId" placeholder="请选择课程专业" clearable>
                <el-option
                  v-for="item in subjectList"
                  :key="item.id"
                  :label="item.subjectName"
                  :value="item.id"
                >
                </el-option>
              </el-select>
            </el-form-item>
            <el-form-item label="课程名称" prop="courseName">
              <el-input
                v-model="queryParams.courseName"
                placeholder="请输入课程名称"
                clearable
                @keyup.enter.native="handleQuery"
              />
            </el-form-item>
            <el-form-item label="启用状态" prop="isEnable">
              <el-select v-model="queryParams.isEnable" placeholder="请选择是否启用：0-未启用  1-启用" clearable>
                <el-option
                  v-for="dict in dict.type.sys_open_status"
                  :key="dict.value"
                  :label="dict.label"
                  :value="dict.value"
                />
              </el-select>
            </el-form-item>
            <el-form-item label="课程老师" prop="isEnable">
              <el-select v-model="queryParams.courseTeacherId" placeholder="请选择课程老师" clearable>
                <el-option
                  v-for="item in listTechers"
                  :key="item.userId"
                  :label="item.nickName"
                  :value="item.userId"
                >
                </el-option>
              </el-select>
            </el-form-item>
            <el-form-item>
              <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
              <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
            </el-form-item>
          </el-form>
        </el-card>

        <el-card class="table-card">
          <el-row :gutter="10" class="mb8">
            <el-col :span="1.5">
              <el-button
                type="primary"
                plain
                icon="el-icon-plus"
                size="mini"
                @click="handleAdd"
                v-hasPermi="['information:subjectCourse:add']"
              >新增
              </el-button>
            </el-col>
            <el-col :span="1.5">
              <el-button
                type="success"
                plain
                icon="el-icon-edit"
                size="mini"
                :disabled="single"
                @click="handleUpdate"
                v-hasPermi="['information:subjectCourse:edit']"
              >修改
              </el-button>
            </el-col>
            <el-col :span="1.5">
              <el-button
                type="danger"
                plain
                icon="el-icon-delete"
                size="mini"
                :disabled="multiple"
                @click="handleDelete"
                v-hasPermi="['information:subjectCourse:remove']"
              >删除
              </el-button>
            </el-col>
            <el-col :span="1.5">
              <el-button
                type="warning"
                plain
                icon="el-icon-download"
                size="mini"
                @click="handleImport(null)"
                v-hasPermi="['course:score:import']"
              >成绩录入
              </el-button>
              <el-col :span="1.5">
                <el-button
                  type="success"
                  plain
                  icon="el-icon-edit"
                  size="mini"
                  @click="handleWarning"
                >一键预警
                </el-button>
              </el-col>
            </el-col>
            <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
          </el-row>

          <el-table v-loading="loading" :data="subjectCourseList" @selection-change="handleSelectionChange">
            <el-table-column type="selection" width="55" align="center"/>
            <el-table-column label="序号" align="center" prop="id"/>
            <el-table-column label="学院" align="center" prop="depName"/>
            <el-table-column label="专业" align="center" prop="subjectName"/>
            <el-table-column label="课程代码" align="center" prop="courseCode"/>
            <el-table-column label="课程名称" align="center" prop="courseName"/>
            <el-table-column label="课程介绍" align="center" prop="content"/>
            <!--            <el-table-column label="课程教师" align="center" prop="courseTeacher" />-->
            <el-table-column label="启用状态" align="center" prop="isEnable">
              <template slot-scope="scope">
                <dict-tag :options="dict.type.sys_open_status" :value="scope.row.isEnable"/>
              </template>
            </el-table-column>
            <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
              <template slot-scope="scope">
                <el-button
                  size="mini"
                  type="text"
                  icon="el-icon-edit"
                  @click="handleUpdate(scope.row)"
                  v-hasPermi="['information:subjectCourse:edit']"
                >修改
                </el-button>
                <el-button
                  size="mini"
                  type="text"
                  icon="el-icon-upload2"
                  @click="handleImport(scope.row)"
                  v-hasPermi="['course:score:import']"
                >成绩录入
                </el-button>
                <router-link :to="'/subjectCourse/score/index/' + scope.row.id">
                  <el-button
                    size="mini"
                    type="text"
                    icon="el-icon-view"
                  >成绩查看
                  </el-button>
                </router-link>
                <el-button
                  size="mini"
                  type="text"
                  icon="el-icon-delete"
                  @click="handleDelete(scope.row)"
                  v-hasPermi="['information:subjectCourse:remove']"
                >删除
                </el-button>
              </template>
            </el-table-column>
          </el-table>

          <pagination
            v-show="total>0"
            :total="total"
            :page.sync="queryParams.pageNo"
            :limit.sync="queryParams.pageLimit"
            @pagination="getList"
          />
        </el-card>
      </el-col>
    </el-row>


    <!-- 添加或修改专业课程管理对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="课程专业" prop="depId">
          <el-select v-model="form.subjectId" placeholder="请选择课程专业" clearable>
            <el-option
              v-for="item in subjectList"
              :key="item.id"
              :label="item.subjectName"
              :value="item.id"
            >
            </el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="课程代码" prop="courseName">
          <el-input v-model="form.courseCode" placeholder="请输入课程代码"/>
        </el-form-item>
        <el-form-item label="课程名称" prop="courseName">
          <el-input v-model="form.courseName" placeholder="请输入课程名称"/>
        </el-form-item>
        <el-form-item label="课程介绍" prop="content">
          <el-input v-model="form.content" type="textarea" :rows="4" placeholder="请输入内容"/>
        </el-form-item>
        <el-form-item label="课程教师" prop="courseTeacher">
          <el-select v-model="form.courseTeacher" multiple placeholder="请选择讲师">
            <el-option
              v-for="item in listTechers"
              :key="item.userId"
              :label="item.nickName"
              :value="item.userId"
            >
            </el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="启用状态" prop="isEnable">
          <el-select v-model="form.isEnable" placeholder="请选择是否启用">
            <el-option
              v-for="dict in dict.type.sys_open_status"
              :key="dict.value"
              :label="dict.label"
              :value="parseInt(dict.value)"
            ></el-option>
          </el-select>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>

    <!-- 用户导入对话框 -->
    <rm-dialog :title="upload.title" :visible.sync="upload.open" width="400px" append-to-body>
      <el-upload
        ref="upload"
        :limit="1"
        accept=".xlsx, .xls"
        :headers="upload.headers"
        :action="upload.url + (upload.courseCode === '' ? '' : ('?courseCode=' + upload.courseCode))"
        :disabled="upload.isUploading"
        :on-progress="handleFileUploadProgress"
        :on-success="handleFileSuccess"
        :auto-upload="false"
        drag
      >
        <i class="el-icon-upload"></i>
        <div class="el-upload__text">将文件拖到此处，或<em>点击上传</em></div>
        <div class="el-upload__tip text-center" slot="tip">
          <span>仅允许导入xls、xlsx格式文件。</span>
          <el-link type="primary" :underline="false" style="font-size:12px;vertical-align: baseline;"
                   @click="importTemplate">下载模板
          </el-link>
        </div>
      </el-upload>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitFileForm">确 定</el-button>
        <el-button @click="upload.open = false">取 消</el-button>
      </div>
    </rm-dialog>
  </div>
</template>

<script>
import {
  manageListSubjectCourse,
  getSubjectCourse,
  delSubjectCourse,
  addSubjectCourse,
  updateSubjectCourse,
  getTeacherList
} from '@/api/information/subjectCourse'
import {getToken} from "@/utils/auth";
import { getSubjectByUser } from "@/api/information/subject";
import { getDegreeWarning } from '@/api/course/degreeGrade'

export default {
  name: 'SubjectCourse',
  dicts: ['sys_open_status'],
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 专业课程管理表格数据
      subjectCourseList: [],
      // 弹出层标题
      title: '',
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNo: 1,
        pageLimit: 10,
        depId: null,
        subjectId: null,
        courseName: null,
        courseTeacher: null,
        isEnable: null
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {},
      listTechers: [],
      subjectList: [],

      // 用户导入参数
      upload: {
        // 是否显示弹出层（用户导入）
        open: false,
        // 弹出层标题（用户导入）
        title: "",
        // 是否禁用上传
        isUploading: false,
        // 是否更新已经存在的用户数据
        courseCode: '',
        // 设置上传的请求头部
        headers: {Authorization: "Bearer " + getToken()},
        // 上传的地址
        url: process.env.VUE_APP_BASE_API + "/course/score/importData"
      },
    }
  },
  created() {
    this.getList()
    this.listTeacher()
    this.findSubject()
  },
  methods: {
    handleWarning(){
      getDegreeWarning().then(res => {
        // 提示预警成功
        this.$alert("<font color='red'>已成功给学生发送学业预警信息！</font>", '系统提示', {
          dangerouslyUseHTMLString: true,
          type: 'success'
        }).then(() => {
        }).catch(() => {
        });
      })
    },
    findSubject(){
      getSubjectByUser().then(res => {
        this.subjectList = res.data
      })
    },
    listTeacher() {
      getTeacherList().then(res => {
        this.listTechers = res.data
      })
    },
    /** 查询专业课程管理列表 */
    getList() {
      this.loading = true
      manageListSubjectCourse(this.queryParams).then(response => {
        this.subjectCourseList = response.rows
        this.total = response.total
        this.loading = false
      })
    },
    // 取消按钮
    cancel() {
      this.open = false
      this.reset()
    },
    // 表单重置
    reset() {
      this.form = {
        id: null,
        depId: null,
        subjectId: null,
        courseName: null,
        content: null,
        courseTeacher: null,
        isEnable: null,
        createTime: null,
        updateTime: null
      }
      this.resetForm('form')
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1
      this.getList()
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm('queryForm')
      this.handleQuery()
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.id)
      this.single = selection.length !== 1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset()
      this.form.subjectId = this.queryParams.subjectId
      this.open = true
      this.title = '添加专业课程管理'
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset()
      const id = row.id || this.ids
      getSubjectCourse(id).then(response => {
        this.form = response.data
        this.open = true
        this.title = '修改专业课程管理'
      })
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs['form'].validate(valid => {
        if (valid) {
          if (this.form.id != null) {
            updateSubjectCourse(this.form).then(response => {
              this.$modal.msgSuccess('修改成功')
              this.open = false
              this.getList()
            })
          } else {
            addSubjectCourse(this.form).then(response => {
              this.$modal.msgSuccess('新增成功')
              this.open = false
              this.getList()
            })
          }
        }
      })
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const ids = row.id || this.ids
      this.$modal.confirm('是否确认删除专业课程管理编号为"' + ids + '"的数据项？').then(function() {
        return delSubjectCourse(ids)
      }).then(() => {
        this.getList()
        this.$modal.msgSuccess('删除成功')
      }).catch(() => {
      })
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('information/subjectCourse/export', {
        ...this.queryParams
      }, `subjectCourse_${new Date().getTime()}.xlsx`)
    },
    /** 导入按钮操作 */
    handleImport(row) {
      this.upload.title = "课程成绩录入";
      if (row != null) {
        this.upload.courseCode = row.courseCode;
      } else {
        this.upload.courseCode = '';
      }
      this.upload.open = true;
    },
    /** 下载模板操作 */
    importTemplate() {
      this.download('/course/score/exportTemplate', {}, `学习成绩录入模板_${new Date().getTime()}.xlsx`)
    },
    // 文件上传中处理
    handleFileUploadProgress(event, file, fileList) {
      this.upload.isUploading = true;
    },
    // 文件上传成功处理
    handleFileSuccess(response, file, fileList) {
      this.upload.open = false;
      this.upload.isUploading = false;
      this.$refs.upload.clearFiles();
      this.$alert("<div style='overflow: auto;overflow-x: hidden;max-height: 70vh;padding: 10px 20px 0;'>" + response.msg + "</div>", "导入结果", {dangerouslyUseHTMLString: true});
    },
    // 提交上传文件
    submitFileForm() {
      this.$refs.upload.submit();
    }
  }
}
</script>
